/*
 * Copyright 2002-2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.transaction;

/**
 * Common representation of the current state of a transaction.
 * Serves as base interface for {@link TransactionStatus} as well as
 * {@link ReactiveTransaction}.
 *
 * @author Juergen Hoeller
 * @since 5.2
 */
public interface TransactionExecution {

	// 判断当前的事务是否是新事务
	boolean isNewTransaction( );

	// 这是了这个，事务的唯一结果是进行回滚。因此如果你在外层给try catch住不让事务回滚，就会抛出你可能常见的异常：
	void setRollbackOnly( );

	/**
	 * Return whether the transaction has been marked as rollback-only
	 * (either by the application or by the transaction infrastructure).
	 */
	boolean isRollbackOnly( );

	// 不管是commit或者rollback了都算结束了~~~
	boolean isCompleted( );

}
